Java Code Examples for org.apache.kylin.common.KylinConfig#getCubePlannerQueryUncertaintyRatio()

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Example 1
Source File: CuboidRecommenderUtil.java    From kylin-on-parquet-v2 with Apache License 2.0 5 votes vote down vote up 
/** Trigger cube planner phase two for optimization */
public static Map<Long, Long> getRecommendCuboidList(CubeInstance cube, Map<Long, Long> hitFrequencyMap,
        Map<Long, Map<Long, Pair<Long, Long>>> rollingUpCountSourceMap) throws IOException {

    CuboidScheduler cuboidScheduler = cube.getCuboidScheduler();
    Set<Long> currentCuboids = cuboidScheduler.getAllCuboidIds();
    Pair<Map<Long, Long>, Map<Long, Double>> statsPair = CuboidStatsReaderUtil
            .readCuboidStatsAndSizeFromCube(currentCuboids, cube);
    long baseCuboid = cuboidScheduler.getBaseCuboidId();
    if (statsPair.getFirst().get(baseCuboid) == null || statsPair.getFirst().get(baseCuboid) == 0L) {
        logger.info(BASE_CUBOID_COUNT_IN_CUBOID_STATISTICS_IS_ZERO);
        return null;
    }

    KylinConfig config = cube.getConfig();
    String key = cube.getName();
    double queryUncertaintyRatio = config.getCubePlannerQueryUncertaintyRatio();
    double bpusMinBenefitRatio = config.getCubePlannerBPUSMinBenefitRatio();
    CuboidStats cuboidStats = new CuboidStats.Builder(key, baseCuboid, statsPair.getFirst(),
            statsPair.getSecond()) {
        @Override
        public Map<Long, Double> estimateCuboidsSize(Map<Long, Long> statistics) {
            try {
                return CuboidStatsReaderUtil.readCuboidSizeFromCube(statistics, cube);
            } catch (IOException e) {
                logger.warn("Fail to get cuboid size from cube due to ", e);
                return null;
            }
        }
    }.setQueryUncertaintyRatio(queryUncertaintyRatio) //
            .setBPUSMinBenefitRatio(bpusMinBenefitRatio) //
            .setHitFrequencyMap(hitFrequencyMap) //
            .setRollingUpCountSourceMap(rollingUpCountSourceMap) //
            .build();
    return CuboidRecommender.getInstance().getRecommendCuboidList(cuboidStats, config);
}
Example 2
Source File: CuboidRecommenderUtil.java    From kylin with Apache License 2.0 5 votes vote down vote up 
/** Trigger cube planner phase two for optimization */
public static Map<Long, Long> getRecommendCuboidList(CubeInstance cube, Map<Long, Long> hitFrequencyMap,
        Map<Long, Map<Long, Pair<Long, Long>>> rollingUpCountSourceMap) throws IOException {

    CuboidScheduler cuboidScheduler = cube.getCuboidScheduler();
    Set<Long> currentCuboids = cuboidScheduler.getAllCuboidIds();
    Pair<Map<Long, Long>, Map<Long, Double>> statsPair = CuboidStatsReaderUtil
            .readCuboidStatsAndSizeFromCube(currentCuboids, cube);
    long baseCuboid = cuboidScheduler.getBaseCuboidId();
    if (statsPair.getFirst().get(baseCuboid) == null || statsPair.getFirst().get(baseCuboid) == 0L) {
        logger.info(BASE_CUBOID_COUNT_IN_CUBOID_STATISTICS_IS_ZERO);
        return null;
    }

    KylinConfig config = cube.getConfig();
    String key = cube.getName();
    double queryUncertaintyRatio = config.getCubePlannerQueryUncertaintyRatio();
    double bpusMinBenefitRatio = config.getCubePlannerBPUSMinBenefitRatio();
    CuboidStats cuboidStats = new CuboidStats.Builder(key, baseCuboid, statsPair.getFirst(),
            statsPair.getSecond()) {
        @Override
        public Map<Long, Double> estimateCuboidsSize(Map<Long, Long> statistics) {
            try {
                return CuboidStatsReaderUtil.readCuboidSizeFromCube(statistics, cube);
            } catch (IOException e) {
                logger.warn("Fail to get cuboid size from cube due to ", e);
                return null;
            }
        }
    }.setQueryUncertaintyRatio(queryUncertaintyRatio) //
            .setBPUSMinBenefitRatio(bpusMinBenefitRatio) //
            .setHitFrequencyMap(hitFrequencyMap) //
            .setRollingUpCountSourceMap(rollingUpCountSourceMap) //
            .build();
    return CuboidRecommender.getInstance().getRecommendCuboidList(cuboidStats, config);
}